/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package com.inspur.edp.lcm.metadata.common.compiler;

import com.inspur.edp.lcm.metadata.api.entity.compiler.CompilerConfiguration;
import com.inspur.edp.lcm.metadata.spi.MetadataCompileAction;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MetadataCompilerHelper extends MetadataCompilerConfigLoader {
    private static MetadataCompilerHelper singleton = null;

    private static final Map<String, MetadataCompileAction> metadataCompileActionMap = new HashMap();

    public static MetadataCompilerHelper getInstance() {
        if (singleton == null) {
            singleton = new MetadataCompilerHelper();
        }
        return singleton;
    }

    public List<CompilerConfiguration> getCompileConfigrationList() {
        return loadCompileConfigration();
    }

    public MetadataCompileAction getMetadataCompiler(String typeCode) {
        if (metadataCompileActionMap.containsKey(typeCode)) {
            return metadataCompileActionMap.get(typeCode);
        }

        CompilerConfiguration compileConfigurationData = getCompileConfigurationData(typeCode);
        if (compileConfigurationData == null) {
            return null;
        }
        MetadataCompileAction metadataCompile = null;
        Class<?> clazz;
        try {
            if (compileConfigurationData.getMetadataCompiler() != null) {
                clazz = Class.forName(compileConfigurationData.getMetadataCompiler().getName());
                metadataCompile = (MetadataCompileAction) clazz.newInstance();
            }
        } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
            throw new RuntimeException(e);
        }

        metadataCompileActionMap.put(typeCode, metadataCompile);
        return metadataCompile;
    }

}
